Frank D. Ruble

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Saratoga, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Automated rigid-disk finishing system providing in-line process con...
- Patent number 5,099,615
- Issue date Mar 31, 1992
- Exclusive Design Company, Inc.
- Frank D. Ruble
- B24 - GRINDING POLISHING
Information Patent Grant
Automated rigid-disk finishing system providing in-line process con...
- Patent number 5,088,240
- Issue date Feb 18, 1992
- Exclusive Design Company, Inc.
- Frank D. Ruble
- B24 - GRINDING POLISHING
Information Patent Grant
Apparatus for texturing rigid-disks used in digital magnetic record...
- Patent number 4,964,242
- Issue date Oct 23, 1990
- Exclusive Design Company
- Frank D. Ruble
- B24 - GRINDING POLISHING